CO2 Corrosion Models for Oil and Gas Production Systems

Several CO2 corrosion prediction models have been developed for oil and gas production systems. It can be difficult to understand the differences between the models and choose which models to use. This paper gives an overview of the different prediction models used in the oil and gas industry for evaluation of CO₂ corrosion of carbon steel. The differences between the models are explained. The models differ considerably in how they predict the effect of protective corrosion films and the effect of oil wetting on CO₂ corrosion, and these two factors account for the most pronounced differences between the various models.